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| 1 | 可生物降解镁及镁合金表面改性研究进展显示文摘生物医用镁及镁合金可降解吸收,具有良好的生物相容性,弹性模量与人体骨接近,是理想的人体植入物材料。在体液环境中,医用镁合金腐蚀速率较快,常常导致植入物过早失效。对镁合金表面进行适当改性,可调控合金降解速率、提高生物相容性。最常见的表面改性方法是在镁合金表面生成保护性涂层,这些涂层主要包括可降解高分子涂层和一些无机涂层。综述了近几年可生物降解镁及镁合金的表面改性涂层及改性技术的最新研究动态,探讨了镁及镁合金表面制备无机涂层和可降解高分子涂层的一些改性方法;简要介绍了阳极氧化、微弧氧化、离子注入、溶胶-凝胶、等离子喷涂及化学沉积等表面改性方法的原理,并比较其优缺点;提出了可生物降解镁及镁合金表面改性涂层研究中面临的问题,并展望了未来发展方向。 | 胡怡娟 毕衍泽 何东磊 于宏燕 李岩 | 2019 | 表面技术2019，48，9： | 10 |
| 2 | In-vitro corrosion of AZ31 magnesium alloys by using a polydopamine coating显示文摘Magnesium alloys are candidates to be used as biodegradable biomaterials for producing medical device.Their use is restricted due to the high degradation rate in physiological media.To contribute to solving this problem,a polydopamine(PDOPA)layer could be used to increase adhesion between the metallic substrate and external organic coating.In this paper,the corrosion behaviour of samples was investigated to determine their performance during the long-term exposure in simulated body fluid.Electrochemical methods including Open Circuit Potential(OCP)and Electrochemical Impedance Spectroscopy(EIS)were used to investigate the corrosion resistance of samples.The results demonstrated a decreasing of the substrate degradation rate when PDOPA was used as interlayer supposing a synergistic effect when it was used together with the organic coating. | Anna Carangelo Annalisa Acquesta Tullio Monetta | 2019 | Bioactive Materials2019，4，1： | 9 |
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